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Merge pull request #5555 from Icinga/feature/ecc-certs 

Implement support for ECC certificates
This commit is contained in:
Gunnar Beutner 2017-11-27 15:11:04 +01:00 committed by GitHub
parent 27aaa10ee9 10691db5b1
commit 6b3931973e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 51 additions and 17 deletions
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68
lib/base/tlsutility.cpp
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@ -89,6 +89,17 @@ boost::shared_ptr<SSL_CTX> MakeSSLContext(const String& pubkey, const String& pr
boost::shared_ptr<SSL_CTX> sslContext = boost::shared_ptr<SSL_CTX>(SSL_CTX_new(SSLv23_method()), SSL_CTX_free);
EC_KEY *ecdh = EC_KEY_new_by_curve_name(NID_secp384r1);
if (!ecdh)
Log(LogWarning, "SSL", "Failed to generate EC private key using EC_KEY_new_by_curve_name().");
else {
if (SSL_CTX_set_tmp_ecdh(sslContext.get(), ecdh) != 1)
Log(LogWarning, "SSL", "Failed to set ECDH parameters for SSL context using SSL_CTX_set_tmp_ecdh.");
}
EC_KEY_free(ecdh);
long flags = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_CIPHER_SERVER_PREFERENCE;
#ifdef SSL_OP_NO_COMPRESSION
@ -325,7 +336,31 @@ int MakeX509CSR(const String& cn, const String& keyfile, const String& csrfile,
InitializeOpenSSL();
RSA *rsa = RSA_generate_key(4096, RSA_F4, NULL, NULL);
EC_KEY *eckey = EC_KEY_new_by_curve_name(NID_secp384r1);
EC_KEY_set_asn1_flag(eckey, OPENSSL_EC_NAMED_CURVE);
if (!EC_KEY_generate_key(eckey)) {
EC_KEY_free(eckey);
Log(LogCritical, "SSL")
<< "Error while generating EC key pair: " << ERR_peek_error() << ", \"" << ERR_error_string(ERR_peek_error(), errbuf) << "\"";
BOOST_THROW_EXCEPTION(openssl_error()
<< boost::errinfo_api_function("EC_KEY_generate_key")
<< errinfo_openssl_error(ERR_peek_error()));
}
EVP_PKEY *key = EVP_PKEY_new();
if (!EVP_PKEY_assign_EC_KEY(key, eckey)) {
EVP_PKEY_free(key);
EC_KEY_free(eckey);
Log(LogCritical, "SSL")
<< "Error while assigning EC key to EVP_PKEY structure: " << ERR_peek_error() << ", \"" << ERR_error_string(ERR_peek_error(), errbuf) << "\"";
BOOST_THROW_EXCEPTION(openssl_error()
<< boost::errinfo_api_function("EC_KEY_generate_key")
<< errinfo_openssl_error(ERR_peek_error()));
}
Log(LogInformation, "base")
<< "Writing private key to '" << keyfile << "'.";
@ -333,19 +368,26 @@ int MakeX509CSR(const String& cn, const String& keyfile, const String& csrfile,
BIO *bio = BIO_new_file(const_cast<char *>(keyfile.CStr()), "w");
if (!bio) {
EVP_PKEY_free(key);
EC_KEY_free(eckey);
Log(LogCritical, "SSL")
<< "Error while opening private RSA key file '" << keyfile << "': " << ERR_peek_error() << ", \"" << ERR_error_string(ERR_peek_error(), errbuf) << "\"";
<< "Error while opening private key file '" << keyfile << "': " << ERR_peek_error() << ", \"" << ERR_error_string(ERR_peek_error(), errbuf) << "\"";
BOOST_THROW_EXCEPTION(openssl_error()
<< boost::errinfo_api_function("BIO_new_file")
<< errinfo_openssl_error(ERR_peek_error())
<< boost::errinfo_file_name(keyfile));
}
if (!PEM_write_bio_RSAPrivateKey(bio, rsa, NULL, NULL, 0, NULL, NULL)) {
if (!PEM_write_bio_PrivateKey(bio, key, NULL, NULL, 0, 0, NULL)) {
EVP_PKEY_free(key);
EC_KEY_free(eckey);
BIO_free(bio);
Log(LogCritical, "SSL")
<< "Error while writing private RSA key to file '" << keyfile << "': " << ERR_peek_error() << ", \"" << ERR_error_string(ERR_peek_error(), errbuf) << "\"";
<< "Error while writing private key to file '" << keyfile << "': " << ERR_peek_error() << ", \"" << ERR_error_string(ERR_peek_error(), errbuf) << "\"";
BOOST_THROW_EXCEPTION(openssl_error()
<< boost::errinfo_api_function("PEM_write_bio_RSAPrivateKey")
<< boost::errinfo_api_function("PEM_write_bio_PrivateKey")
<< errinfo_openssl_error(ERR_peek_error())
<< boost::errinfo_file_name(keyfile));
}
@ -355,10 +397,7 @@ int MakeX509CSR(const String& cn, const String& keyfile, const String& csrfile,
#ifndef _WIN32
chmod(keyfile.CStr(), 0600);
#endif /* _WIN32 */
EVP_PKEY *key = EVP_PKEY_new();
EVP_PKEY_assign_RSA(key, rsa);
if (!certfile.IsEmpty()) {
X509_NAME *subject = X509_NAME_new();
X509_NAME_add_entry_by_txt(subject, "CN", MBSTRING_ASC, (unsigned char *)cn.CStr(), -1, -1, 0);
@ -545,8 +584,6 @@ boost::shared_ptr<X509> CreateCertIcingaCA(EVP_PKEY *pubkey, X509_NAME *subject)
String cakeyfile = cadir + "/ca.key";
RSA *rsa;
BIO *cakeybio = BIO_new_file(const_cast<char *>(cakeyfile.CStr()), "r");
if (!cakeybio) {
@ -555,11 +592,11 @@ boost::shared_ptr<X509> CreateCertIcingaCA(EVP_PKEY *pubkey, X509_NAME *subject)
return boost::shared_ptr<X509>();
}
rsa = PEM_read_bio_RSAPrivateKey(cakeybio, NULL, NULL, NULL);
EVP_PKEY *privkey = PEM_read_bio_PrivateKey(cakeybio, NULL, NULL, NULL);
if (!rsa) {
if (!privkey) {
Log(LogCritical, "SSL")
<< "Could not read RSA key from CA key file '" << cakeyfile << "': " << ERR_peek_error() << ", \"" << ERR_error_string(ERR_peek_error(), errbuf) << "\"";
<< "Could not read private key from CA key file '" << cakeyfile << "': " << ERR_peek_error() << ", \"" << ERR_error_string(ERR_peek_error(), errbuf) << "\"";
return boost::shared_ptr<X509>();
}
@ -569,9 +606,6 @@ boost::shared_ptr<X509> CreateCertIcingaCA(EVP_PKEY *pubkey, X509_NAME *subject)
boost::shared_ptr<X509> cacert = GetX509Certificate(cacertfile);
EVP_PKEY *privkey = EVP_PKEY_new();
EVP_PKEY_assign_RSA(privkey, rsa);
return CreateCert(pubkey, subject, X509_get_subject_name(cacert.get()), privkey, false);
}